Crown of Eleanor III of Irene

The Crown of Eleanor III is the sole surviving crown from the 5th to 6th-century reign of Eleanor III among the Irenian Crown Jewels.

History
The crown was created for Empress Eleanor III in 500, when she had a new crown created for her coronation—the original crown that had been previously used for all of the previous monarchs before Eleanor III had been stolen—it was simpler than the original in terms of design and was created to give off more of a masculine air to intimidate her enemies. In the middle of the crown, there was only one diamond—the design meant to mimic her coat of arms. The new crown was made by the direct ancestor of Laurent Rondé, Isabella Rondé, and was worn by the Empress when she was crowned—as a downside it made her appear more masculine to her enemies.

Historical Importance
As the crown was made in 500 (5th century), when the Empress was a little more than twelve-years-old, they had to constantly measure and resize the crown so that it would fit her head—eventually in 5029, she ascended to the throne and was coronated as the Empress of Irene—due to her being a full adult at the time of her ascension, the Crown was never resized after that point.